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Wow! I have seen my plecos eat meat before but I have never seen one go up to the top to grab a cube like that, that's really cool! Don't the science behind their eyesight but he must be seeing something to go up to the top light that. Beautiful fish too!

I've read articles that say plecos eyes are situated to look upward, ostensibly to look for enemies, and are virtually useless when trolling along the bottom looking for food. So they use other senses when trying to find that algae wafer you just threw in but yours may very well use eyesight to find a cube stuck to the glass at the top of the tank.